I recognized the scientist shown in this article's main picture from BBC "The Boy With The Incredible Brain" which is fully available on google video: http://video.google.com/videoplay?docid=4913196365903075662
`In a study of 67 adults... electrical stimulation ... prompted three times as many participants to come up with an insightful solution to a puzzle compared with those who didn't receive a brain zap.`<p>Isn`t that far too small of a sample to be reporting on?